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    DATA PREVIEWING BEFORE RECALLING LARGE DATA FILES
    2.
    发明申请
    DATA PREVIEWING BEFORE RECALLING LARGE DATA FILES 有权

    公开(公告)号：US20220138148A1

    公开(公告)日：2022-05-05

    申请号：US17579329

    申请日：2022-01-19

    Applicant: Commvault Systems, Inc.

    Inventor： Yongtao LIU ,  Paramasivam KUMARASAMY ,  Prakash VARADHARAJAN

    IPC: G06F16/11

    Abstract: Techniques for providing data preview before recalling large data files are disclosed. In one aspect, a data file is made accessible while being offline by converting the data file from a native format to a preview format, storing the data file in the preview format in a primary storage that is locally available and moving, after the conversion to the preview format, the data file in the native format to a secondary storage. When a viewing request is received for the data file, the data file in the preview format is displayed to fulfill the viewing request.

    DATA STORAGE SYSTEMS AND METHODS
    3.
    发明申请
    DATA STORAGE SYSTEMS AND METHODS 有权
    数据存储系统和方法

    公开(公告)号：US20160078245A1

    公开(公告)日：2016-03-17

    申请号：US14489222

    申请日：2014-09-17

    Applicant: CommVault Systems, Inc.

    Inventor： Arun Prasad AMARENDRAN ,  Tirthankar CHATTERJEE ,  Yun YUAN ,  Yongtao LIU

    IPC: G06F21/62 ,  H04L9/00 ,  G06N99/00

    CPC classification number: G06F12/1408 ,  G06F17/27 ,  G06F17/3012 ,  G06F21/602 ,  G06F21/6218 ,  G06F2212/1052 ,  G06F2212/402 ,  G06F2221/2107 ,  G06N5/02 ,  G06N99/005 ,  H04L63/0428 ,  H04L67/10

    Abstract: Data storage systems are disclosed for automatically generating encryption rules based on a set of training files that are known to include sensitive information. The system may use a number of heuristic algorithms to generate one or more encryption rules for determining whether a file includes sensitive information. Further, the system may apply the heuristic algorithms to the content of the files, as determined by using natural language processing algorithms, to generate the encryption rules. Moreover, systems are disclosed that are capable of automatically determining whether to encrypt a file based on the generated encryption rules. The content of the file may be determined using natural language processing algorithms and then the encryption rules may be applied to the content of the file to determine whether to encrypt the file.

    Abstract translation: 公开了用于基于已知包括敏感信息的一组训练文件来自动生成加密规则的数据存储系统。 该系统可以使用多个启发式算法来生成用于确定文件是否包括敏感信息的一个或多个加密规则。 此外，系统可以将启发式算法应用于通过使用自然语言处理算法确定的文件内容以生成加密规则。 此外，公开了能够基于生成的加密规则自动确定是否加密文件的系统。 可以使用自然语言处理算法来确定文件的内容，然后可以将加密规则应用于文件的内容以确定是否加密该文件。

    ANALYSIS OF BACKUP COPIES TO IDENTIFY MALWARE-ENCRYPTED PRIMARY DATA
    4.
    发明公开
    ANALYSIS OF BACKUP COPIES TO IDENTIFY MALWARE-ENCRYPTED PRIMARY DATA 审中-公开

    公开(公告)号：US20240143759A1

    公开(公告)日：2024-05-02

    申请号：US17975409

    申请日：2022-10-27

    Applicant: Commvault Systems, Inc.

    Inventor： Jitin JINDAL ,  Arun Prasad AMARENDRAN ,  Chandan SINGH ,  Gopikannan VENUGOPALSAMY ,  Yongtao LIU

    IPC: G06F21/56

    CPC classification number: G06F21/566 ,  G06F21/568

    Abstract: Backup data is leveraged to determine whether primary data has been encrypted by malware. The disclosed approach does not rely on recognizing particular malware instances or malware provenance, and thus can be applied to any body of data. Even a novel and previously unknown malware attack can be detected in this way. An illustrative data storage management system analyzes secondary copies it created over time, applies a multi-factor analysis to data recovered from the secondary copies and, based on the analysis, infers whether the primary data from which the secondary copies were created may be encrypted. The present approach uses successive versions of backup copies to find indicia of malware encryption, rather than trying to trace or identify the malware itself. Indicia of entropy correlate highly with encryption, such as encryption performed by malware attacks. Conversely, indicia of similarity correlate highly with lack of encryption of successive versions of documents.

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